are you graphing? slope is just rise over run (rise/run) (point slope form is y=mx+b.)the m is the slope, x is the variable, b is the position on the y axis. so if you had y=2x+4, you would put your first point on (0,4) and then go up 2 points and over 1 point (rise over run) treat the 2 like a 2/1x. another example is y=2/3x+2. you would put the first point on (0,2) and then, from there, go up 2 points and over 3 points. negative slope: y=-x+3 you put the point on (0,3) then you will go DOWN one and over one. hope this helps some... if anyone sees an error, please correct me